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[Win10] Compilation fails for 8.4.2 version #550

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Anrock opened this issue May 7, 2018 · 32 comments
Closed

[Win10] Compilation fails for 8.4.2 version #550

Anrock opened this issue May 7, 2018 · 32 comments
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@Anrock
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Anrock commented May 7, 2018

Microsoft Windows [Version 10.0.16299.371]
HIE at 97f67d4

Running stack build --copy-compiler-tool results in failure with following output:

�[0mghc-mod-core-5.9.0.0: build (lib)�[0m
�[0mghc-exactprint-0.5.6.1: configure�[0m
�[0mghc-exactprint-0.5.6.1: build�[0m
Progress 2/8

--  While building custom Setup.hs for package ghc-exactprint-0.5.6.1 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 build --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\logs\ghc-exactprint-0.5.6.1.log

    Configuring ghc-exactprint-0.5.6.1...
    Warning: The package has an extraneous version range for a dependency on an
    internal library: ghc-exactprint >=0.5.4. This version range includes the
    current package but isn't needed as the current package's library will always
    be used.
    Warning:
        This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
          package time (time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires Win32-2.6.1.0
          package ghc (ghc-8.4.2) requires Win32-2.6.1.0
          package directory (directory-1.3.1.5) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires directory-1.3.1.5
          package hpc (hpc-0.6.0.3) requires directory-1.3.1.5
          package ghc-boot (ghc-boot-8.4.2) requires directory-1.3.1.5
          package ghc (ghc-8.4.2) requires directory-1.3.1.5
          package ghc-exactprint (ghc-exactprint-0.5.6.1) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-boot (ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghci (ghci-8.4.2) requires ghc-boot-8.4.2
          package ghc (ghc-8.4.2) requires ghc-boot-8.4.2
          package ghc-exactprint (ghc-exactprint-0.5.6.1) requires ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE
          package hpc (hpc-0.6.0.3) requires time-1.8.0.2
          package ghc (ghc-8.4.2) requires time-1.8.0.2
          package directory (directory-1.3.1.5) requires time-1.8.0.2
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
    Preprocessing library for ghc-exactprint-0.5.6.1..
    Building library for ghc-exactprint-0.5.6.1..
    [ 1 of 13] Compiling Language.Haskell.GHC.ExactPrint.Types ( src\Language\Haskell\GHC\ExactPrint\Types.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\Types.o )
    [ 2 of 13] Compiling Language.Haskell.GHC.ExactPrint.Lookup ( src\Language\Haskell\GHC\ExactPrint\Lookup.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\Lookup.o )
    [ 3 of 13] Compiling Language.Haskell.GHC.ExactPrint.AnnotateTypes ( src\Language\Haskell\GHC\ExactPrint\AnnotateTypes.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\AnnotateTypes.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o
    The symbol was previously defined in
       C:\sr\snapshots\03fa9465\lib\x86_64-windows-ghc-8.4.2\Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae\HSWin32-2.5.4.1-LVNqK0SwW285hUwHpPOkae.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.4.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\Anrock\\AppData\\Local\\Programs\\stack\\x86_64-windows\\ghc-8.4.2\\lib\\Win32-2.6.1.0\\HSWin32-2.6.1.0.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug


--  While building custom Setup.hs for package ghc-mod-core-5.9.0.0 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 build lib:ghc-mod-core --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\logs\ghc-mod-core-5.9.0.0.log

    Preprocessing library for ghc-mod-core-5.9.0.0..
    Building library for ghc-mod-core-5.9.0.0..
    [10 of 45] Compiling GhcMod.Types     ( GhcMod\Types.hs, .stack-work\dist\7d103d30\build\GhcMod\Types.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o
    The symbol was previously defined in
       C:\sr\snapshots\03fa9465\lib\x86_64-windows-ghc-8.4.2\Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae\HSWin32-2.5.4.1-LVNqK0SwW285hUwHpPOkae.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.4.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\Anrock\\AppData\\Local\\Programs\\stack\\x86_64-windows\\ghc-8.4.2\\lib\\Win32-2.6.1.0\\HSWin32-2.6.1.0.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
@Anrock Anrock changed the title [Win10] Compilation fail for 8.4.2 version [Win10] Compilation fails for 8.4.2 version May 7, 2018
@Anrock
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Anrock commented May 7, 2018

@alanz should i move this issue to alanz/ghc-exactprint?

@alanz
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alanz commented May 7, 2018

Try doing just stack build, I think the --copy-compiler-tool argument might be putting extraneous stuff into your package search path.

That warning on ghc-exactprint is normal, and not a problem.

@Anrock
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Anrock commented May 7, 2018

@alanz stack build fails too, although messages a little different now:

�[0mghc-mod-core-5.9.0.0: configure (lib)�[0m
�[0mghc-mod-core-5.9.0.0: build (lib)�[0m
�[0mghc-exactprint-0.5.6.1: configure�[0m
�[0mghc-exactprint-0.5.6.1: build�[0m
Progress 2/8

--  While building custom Setup.hs for package ghc-exactprint-0.5.6.1 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 build --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\logs\ghc-exactprint-0.5.6.1.log

    Configuring ghc-exactprint-0.5.6.1...
    Warning: The package has an extraneous version range for a dependency on an
    internal library: ghc-exactprint >=0.5.4. This version range includes the
    current package but isn't needed as the current package's library will always
    be used.
    Warning:
        This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
          package time (time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires Win32-2.6.1.0
          package ghc (ghc-8.4.2) requires Win32-2.6.1.0
          package directory (directory-1.3.1.5) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires directory-1.3.1.5
          package hpc (hpc-0.6.0.3) requires directory-1.3.1.5
          package ghc-boot (ghc-boot-8.4.2) requires directory-1.3.1.5
          package ghc (ghc-8.4.2) requires directory-1.3.1.5
          package ghc-exactprint (ghc-exactprint-0.5.6.1) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-boot (ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghci (ghci-8.4.2) requires ghc-boot-8.4.2
          package ghc (ghc-8.4.2) requires ghc-boot-8.4.2
          package ghc-exactprint (ghc-exactprint-0.5.6.1) requires ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE
          package hpc (hpc-0.6.0.3) requires time-1.8.0.2
          package ghc (ghc-8.4.2) requires time-1.8.0.2
          package directory (directory-1.3.1.5) requires time-1.8.0.2
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
    Preprocessing library for ghc-exactprint-0.5.6.1..
    Building library for ghc-exactprint-0.5.6.1..
    [ 1 of 13] Compiling Language.Haskell.GHC.ExactPrint.Types ( src\Language\Haskell\GHC\ExactPrint\Types.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\Types.o )
    [ 2 of 13] Compiling Language.Haskell.GHC.ExactPrint.Lookup ( src\Language\Haskell\GHC\ExactPrint\Lookup.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\Lookup.o )
    [ 3 of 13] Compiling Language.Haskell.GHC.ExactPrint.AnnotateTypes ( src\Language\Haskell\GHC\ExactPrint\AnnotateTypes.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\AnnotateTypes.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o
    The symbol was previously defined in
       C:\sr\snapshots\03fa9465\lib\x86_64-windows-ghc-8.4.2\Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae\HSWin32-2.5.4.1-LVNqK0SwW285hUwHpPOkae.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.4.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\Anrock\\AppData\\Local\\Programs\\stack\\x86_64-windows\\ghc-8.4.2\\lib\\Win32-2.6.1.0\\HSWin32-2.6.1.0.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug


--  While building custom Setup.hs for package ghc-mod-core-5.9.0.0 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 build lib:ghc-mod-core --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\logs\ghc-mod-core-5.9.0.0.log

    Configuring ghc-mod-core-5.9.0.0...
    Warning:
        This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
          package unix-compat (unix-compat-0.5.0.1-ALLPuaD7J24dL9b6NTbA5) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package process (process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package ansi-terminal (ansi-terminal-0.8.0.2-AQwelgnwMTFGc4jiARIgzm) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires Win32-2.6.1.0
          package ghc (ghc-8.4.2) requires Win32-2.6.1.0
          package directory (directory-1.3.1.5) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires directory-1.3.1.5
          package hpc (hpc-0.6.0.3) requires directory-1.3.1.5
          package ghc-boot (ghc-boot-8.4.2) requires directory-1.3.1.5
          package ghc (ghc-8.4.2) requires directory-1.3.1.5
          package unix-compat (unix-compat-0.5.0.1-ALLPuaD7J24dL9b6NTbA5) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package temporary (temporary-1.2.1.1-8f2WBQRkfsZ9IwRyqpPINq) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package process (process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-boot (ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package extra (extra-1.6.6-E23jajM052SDJ4GgmArFUp) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package cpphs (cpphs-1.20.8-JKmr2FfpPiI6VediyrxNsH) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package cabal-helper (cabal-helper-0.8.0.3-1xg5DxHt7TJ8aF98p8nk0A) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghci (ghci-8.4.2) requires ghc-boot-8.4.2
          package ghc (ghc-8.4.2) requires ghc-boot-8.4.2
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE
          package ghc (ghc-8.4.2) requires process-1.6.3.0
          package optparse-applicative (optparse-applicative-0.14.2.0-2cLHts4ddm62O3ilVqxDVF) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package extra (extra-1.6.6-E23jajM052SDJ4GgmArFUp) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package cabal-helper (cabal-helper-0.8.0.3-1xg5DxHt7TJ8aF98p8nk0A) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package hpc (hpc-0.6.0.3) requires time-1.8.0.2
          package ghc (ghc-8.4.2) requires time-1.8.0.2
          package directory (directory-1.3.1.5) requires time-1.8.0.2
          package unix-compat (unix-compat-0.5.0.1-ALLPuaD7J24dL9b6NTbA5) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package extra (extra-1.6.6-E23jajM052SDJ4GgmArFUp) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
    Preprocessing library for ghc-mod-core-5.9.0.0..
    Building library for ghc-mod-core-5.9.0.0..
    [ 8 of 45] Compiling GhcMod.DynFlagsTH ( GhcMod\DynFlagsTH.hs, .stack-work\dist\7d103d30\build\GhcMod\DynFlagsTH.o )

    �[;1mGhcMod\DynFlagsTH.hs:26:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Wunused-imports�[0m�[0m�[;1m]�[0m�[0m�[;1m
        The import of `GHC.LanguageExtensions' is redundant
          except perhaps to import instances from `GHC.LanguageExtensions'
        To import instances alone, use: import GHC.LanguageExtensions()�[0m�[0m
    �[;1m�[34m   |�[0m�[0m
    �[;1m�[34m26 |�[0m�[0m �[;1m�[35mimport GHC.LanguageExtensions�[0m�[0m
    �[;1m�[34m   |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:209:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Wmissing-signatures�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Top-level binding with no type signature:
          toSet :: (Ord a, Enum a) => E.EnumSet a -> IS.Set a�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m209 |�[0m�[0m �[;1m�[35mtoSet�[0m�[0m es = IS.fromList $ E.toList es
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:211:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord GeneralFlag
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m211 |�[0m�[0m �[;1m�[35mderiving instance Ord GeneralFlag�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:212:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord WarningFlag
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m212 |�[0m�[0m �[;1m�[35mderiving instance Ord DynFlags.WarningFlag�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:213:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord DumpFlag
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m213 |�[0m�[0m �[;1m�[35mderiving instance Ord DynFlags.DumpFlag�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:214:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord LlvmTarget
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m214 |�[0m�[0m �[;1m�[35mderiving instance Ord DynFlags.LlvmTarget�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:215:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord Extension
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m215 |�[0m�[0m �[;1m�[35mderiving instance Ord Extension�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:216:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Eq LlvmTarget
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m216 |�[0m�[0m �[;1m�[35mderiving instance Eq LlvmTarget�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m[ 9 of 45] Compiling GhcMod.Options.Help ( GhcMod\Options\Help.hs, .stack-work\dist\7d103d30\build\GhcMod\Options\Help.o )
    [10 of 45] Compiling GhcMod.Types     ( GhcMod\Types.hs, .stack-work\dist\7d103d30\build\GhcMod\Types.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o
    The symbol was previously defined in
       C:\sr\snapshots\03fa9465\lib\x86_64-windows-ghc-8.4.2\Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae\HSWin32-2.5.4.1-LVNqK0SwW285hUwHpPOkae.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.4.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\Anrock\\AppData\\Local\\Programs\\stack\\x86_64-windows\\ghc-8.4.2\\lib\\Win32-2.6.1.0\\HSWin32-2.6.1.0.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

@Anrock
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Collaborator Author

Anrock commented May 7, 2018

Probably related: https://ghc.haskell.org/trac/ghc/ticket/11748

@cryptoquick
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sigh...
I'm hitting this too, I think. I'm too new to Haskell to know for sure.

PS C:\projects\personal\haskell-ide-engine> stack build
�[0mNo packages found in snapshot which provide a "cabal" executable, which is a build-tool dependency of "cabal-helper"�[0m
�[0mghc-mod-core-5.9.0.0: configure (lib)�[0m
�[0mhaskell-src-exts-util-0.2.2: download�[0m
�[0mhaskell-lsp-types-0.2.2.0: download�[0m
�[0mhaskell-src-exts-util-0.2.2: configure�[0m
�[0mghc-mod-core-5.9.0.0: build (lib)�[0m
�[0mhaskell-src-exts-util-0.2.2: build�[0m
�[0mhaskell-lsp-types-0.2.2.0: configure�[0m
�[0mhaskell-lsp-types-0.2.2.0: build�[0m
�[0mhaskell-src-exts-util-0.2.2: copy/register�[0m
�[0mhlint-2.1.3: download�[0m
�[0mghc-exactprint-0.5.6.1: configure�[0m
�[0mghc-exactprint-0.5.6.1: build�[0m
�[0mhlint-2.1.3: configure�[0m
�[0mhlint-2.1.3: build�[0m
�[0mhlint-2.1.3: copy/register�[0m
�[0mhaskell-lsp-types-0.2.2.0: copy/register�[0m
Progress 5/13

--  While building custom Setup.hs for package ghc-exactprint-0.5.6.1 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 build --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\projects\personal\haskell-ide-engine\.stack-work\logs\ghc-exactprint-0.5.6.1.log

    Configuring ghc-exactprint-0.5.6.1...
    Warning: The package has an extraneous version range for a dependency on an
    internal library: ghc-exactprint >=0.5.4. This version range includes the
    current package but isn't needed as the current package's library will always
    be used.
    Warning:
        This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
          package time (time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires Win32-2.6.1.0
          package ghc (ghc-8.4.2) requires Win32-2.6.1.0
          package directory (directory-1.3.1.5) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires directory-1.3.1.5
          package hpc (hpc-0.6.0.3) requires directory-1.3.1.5
          package ghc-boot (ghc-boot-8.4.2) requires directory-1.3.1.5
          package ghc (ghc-8.4.2) requires directory-1.3.1.5
          package ghc-exactprint (ghc-exactprint-0.5.6.1) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-boot (ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghci (ghci-8.4.2) requires ghc-boot-8.4.2
          package ghc (ghc-8.4.2) requires ghc-boot-8.4.2
          package ghc-exactprint (ghc-exactprint-0.5.6.1) requires ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE
          package hpc (hpc-0.6.0.3) requires time-1.8.0.2
          package ghc (ghc-8.4.2) requires time-1.8.0.2
          package directory (directory-1.3.1.5) requires time-1.8.0.2
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
    Preprocessing library for ghc-exactprint-0.5.6.1..
    Building library for ghc-exactprint-0.5.6.1..
    [ 1 of 13] Compiling Language.Haskell.GHC.ExactPrint.Types ( src\Language\Haskell\GHC\ExactPrint\Types.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\Types.o )
    [ 2 of 13] Compiling Language.Haskell.GHC.ExactPrint.Lookup ( src\Language\Haskell\GHC\ExactPrint\Lookup.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\Lookup.o )
    [ 3 of 13] Compiling Language.Haskell.GHC.ExactPrint.AnnotateTypes ( src\Language\Haskell\GHC\ExactPrint\AnnotateTypes.hs, .stack-work\dist\7d103d30\build\Language\Haskell\GHC\ExactPrint\AnnotateTypes.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\Users\crypt\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o
    The symbol was previously defined in
       C:\sr\snapshots\03fa9465\lib\x86_64-windows-ghc-8.4.2\Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae\HSWin32-2.5.4.1-LVNqK0SwW285hUwHpPOkae.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.4.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\crypt\\AppData\\Local\\Programs\\stack\\x86_64-windows\\ghc-8.4.2\\lib\\Win32-2.6.1.0\\HSWin32-2.6.1.0.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug


--  While building custom Setup.hs for package ghc-mod-core-5.9.0.0 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 build lib:ghc-mod-core --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\projects\personal\haskell-ide-engine\.stack-work\logs\ghc-mod-core-5.9.0.0.log

    Configuring ghc-mod-core-5.9.0.0...
    Warning:
        This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
          package unix-compat (unix-compat-0.5.0.1-ALLPuaD7J24dL9b6NTbA5) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package process (process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package ansi-terminal (ansi-terminal-0.8.0.2-AQwelgnwMTFGc4jiARIgzm) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae
          package time (time-1.8.0.2) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires Win32-2.6.1.0
          package ghc (ghc-8.4.2) requires Win32-2.6.1.0
          package directory (directory-1.3.1.5) requires Win32-2.6.1.0
          package process (process-1.6.3.0) requires directory-1.3.1.5
          package hpc (hpc-0.6.0.3) requires directory-1.3.1.5
          package ghc-boot (ghc-boot-8.4.2) requires directory-1.3.1.5
          package ghc (ghc-8.4.2) requires directory-1.3.1.5
          package unix-compat (unix-compat-0.5.0.1-ALLPuaD7J24dL9b6NTbA5) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package temporary (temporary-1.2.1.1-8f2WBQRkfsZ9IwRyqpPINq) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package process (process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghc-boot (ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package extra (extra-1.6.6-E23jajM052SDJ4GgmArFUp) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package cpphs (cpphs-1.20.8-JKmr2FfpPiI6VediyrxNsH) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package cabal-helper (cabal-helper-0.8.0.3-1xg5DxHt7TJ8aF98p8nk0A) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1
          package ghci (ghci-8.4.2) requires ghc-boot-8.4.2
          package ghc (ghc-8.4.2) requires ghc-boot-8.4.2
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires ghc-boot-8.4.2-IjXXYP7XIDA1Af0Wr3EqUE
          package ghc (ghc-8.4.2) requires process-1.6.3.0
          package optparse-applicative (optparse-applicative-0.14.2.0-2cLHts4ddm62O3ilVqxDVF) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package extra (extra-1.6.6-E23jajM052SDJ4GgmArFUp) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package cabal-helper (cabal-helper-0.8.0.3-1xg5DxHt7TJ8aF98p8nk0A) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires process-1.6.3.0-FMzG7P7MVAn6mqfwmNuxPP
          package hpc (hpc-0.6.0.3) requires time-1.8.0.2
          package ghc (ghc-8.4.2) requires time-1.8.0.2
          package directory (directory-1.3.1.5) requires time-1.8.0.2
          package unix-compat (unix-compat-0.5.0.1-ALLPuaD7J24dL9b6NTbA5) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package ghc-mod-core (ghc-mod-core-5.9.0.0) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package extra (extra-1.6.6-E23jajM052SDJ4GgmArFUp) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package directory (directory-1.3.1.5-J5MwWdrFyEn9y6RDLELiL1) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
          package Cabal (Cabal-2.2.0.1-FeOI90Zvmr7AkYuby89JJ) requires time-1.8.0.2-D1fwd9ZaD3eDd2StmPCsSC
    Preprocessing library for ghc-mod-core-5.9.0.0..
    Building library for ghc-mod-core-5.9.0.0..
    [ 1 of 45] Compiling Data.Binary.Generic ( Data\Binary\Generic.hs, .stack-work\dist\7d103d30\build\Data\Binary\Generic.o )
    [ 2 of 45] Compiling GhcMod.DynFlagsTH ( GhcMod\DynFlagsTH.hs, .stack-work\dist\7d103d30\build\GhcMod\DynFlagsTH.o )

    �[;1mGhcMod\DynFlagsTH.hs:26:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Wunused-imports�[0m�[0m�[;1m]�[0m�[0m�[;1m
        The import of `GHC.LanguageExtensions' is redundant
          except perhaps to import instances from `GHC.LanguageExtensions'
        To import instances alone, use: import GHC.LanguageExtensions()�[0m�[0m
    �[;1m�[34m   |�[0m�[0m
    �[;1m�[34m26 |�[0m�[0m �[;1m�[35mimport GHC.LanguageExtensions�[0m�[0m
    �[;1m�[34m   |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:209:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Wmissing-signatures�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Top-level binding with no type signature:
          toSet :: (Ord a, Enum a) => E.EnumSet a -> IS.Set a�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m209 |�[0m�[0m �[;1m�[35mtoSet�[0m�[0m es = IS.fromList $ E.toList es
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:211:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord GeneralFlag
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m211 |�[0m�[0m �[;1m�[35mderiving instance Ord GeneralFlag�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:212:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord WarningFlag
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m212 |�[0m�[0m �[;1m�[35mderiving instance Ord DynFlags.WarningFlag�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:213:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord DumpFlag
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m213 |�[0m�[0m �[;1m�[35mderiving instance Ord DynFlags.DumpFlag�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:214:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord LlvmTarget
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m214 |�[0m�[0m �[;1m�[35mderiving instance Ord DynFlags.LlvmTarget�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:215:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Ord Extension
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m215 |�[0m�[0m �[;1m�[35mderiving instance Ord Extension�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m
    �[;1mGhcMod\DynFlagsTH.hs:216:1: �[;1m�[35mwarning:�[0m�[0m�[;1m [�[;1m�[35m-Worphans�[0m�[0m�[;1m]�[0m�[0m�[;1m
        Orphan instance: instance Eq LlvmTarget
        To avoid this
            move the instance declaration to the module of the class or of the type, or
            wrap the type with a newtype and declare the instance on the new type.�[0m�[0m
    �[;1m�[34m    |�[0m�[0m
    �[;1m�[34m216 |�[0m�[0m �[;1m�[35mderiving instance Eq LlvmTarget�[0m�[0m
    �[;1m�[34m    |�[0m�[0m�[;1m�[35m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^�[0m�[0m
    �[0m�[0m�[0m[ 3 of 45] Compiling GhcMod.Options.DocUtils ( GhcMod\Options\DocUtils.hs, .stack-work\dist\7d103d30\build\GhcMod\Options\DocUtils.o )
    [ 4 of 45] Compiling GhcMod.Options.Help ( GhcMod\Options\Help.hs, .stack-work\dist\7d103d30\build\GhcMod\Options\Help.o )
    [ 5 of 45] Compiling GhcMod.Read      ( GhcMod\Read.hs, .stack-work\dist\7d103d30\build\GhcMod\Read.o )
    [ 6 of 45] Compiling Paths_ghc_mod_core ( .stack-work\dist\7d103d30\build\autogen\Paths_ghc_mod_core.hs, .stack-work\dist\7d103d30\build\Paths_ghc_mod_core.o )
    [ 7 of 45] Compiling System.Directory.ModTime ( shared\System\Directory\ModTime.hs, .stack-work\dist\7d103d30\build\System\Directory\ModTime.o )
    [ 8 of 45] Compiling Utils            ( shared\Utils.hs, .stack-work\dist\7d103d30\build\Utils.o )
    [ 9 of 45] Compiling GhcMod.Caching.Types ( GhcMod\Caching\Types.hs, .stack-work\dist\7d103d30\build\GhcMod\Caching\Types.o )
    [10 of 45] Compiling GhcMod.Types     ( GhcMod\Types.hs, .stack-work\dist\7d103d30\build\GhcMod\Types.o )
    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       rgb
    whilst processing object file
       C:\Users\crypt\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o
    The symbol was previously defined in
       C:\sr\snapshots\03fa9465\lib\x86_64-windows-ghc-8.4.2\Win32-2.5.4.1-LVNqK0SwW285hUwHpPOkae\HSWin32-2.5.4.1-LVNqK0SwW285hUwHpPOkae.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc.EXE: panic! (the 'impossible' happened)
      (GHC version 8.4.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\crypt\\AppData\\Local\\Programs\\stack\\x86_64-windows\\ghc-8.4.2\\lib\\Win32-2.6.1.0\\HSWin32-2.6.1.0.o": failed

    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
PS C:\projects\personal\haskell-ide-engine>

@alanz
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alanz commented May 8, 2018

What version of stack are you using? It needs a fairly recent one, and I recommend the current one (1.7.1).

Any experienced windows users able to help here?

@Anrock
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Anrock commented May 8, 2018

@alanz latest one available, 1.7.1

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alanz commented May 8, 2018 via email

@Anrock
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Anrock commented May 8, 2018

Ok, will try when i get home.

@Anrock
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Anrock commented May 8, 2018

stack clean --full prior to stack build didn't change anything :(

@cryptoquick
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I'm using the latest also, 1.7.1.

@freeman42x
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@Anrock This won't fix the issue itself but have you considered trying windows subsystem for Linux instead of mingw?

@Anrock
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Anrock commented May 10, 2018

@razvan-panda yeah, something wasn't working last time i tried, don't remember what. I guess i'll try again sometime.

@cryptoquick
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cryptoquick commented May 10, 2018 •
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FWIW, I was using WSL and getting the same issue. I've since switched to Arch, I'll let you know if the problem persists on Linux as a host OS.

@johnsonwj
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johnsonwj commented May 15, 2018 •
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Here's an issue in Stack that seems to explain the root cause:

Usually it doesn't matter if stack installs different versions of these packages, but when there is also a dependency on ghc, errors like this will occur.

I wonder if there is a way to fix the project dependencies to make sure that we're only ever compiling against the same version of the ghc package that Stack is using as the compiler (or rather, a Stackage snapshot whose Win32 version is the same as the one that Cabal resolves when building ghc)?

PS: as a last resort, there is also the horrible way: clearing out of ALL of stack's various package repositories (${HOME}/AppData, C:\sr, haskell-ide-engine/.stack-work, etc. etc.) and then running stack build from a completely clean environment. This method sucks.

@johnsonwj
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In fact it looks like Win32-2.6.4.1 has never been in a Stackage snapshot, despite that version being a dependency in GHC 8.4.2:

C:\Users\crypt\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\lib\Win32-2.6.1.0\HSWin32-2.6.1.0.o

(from @cryptoquick's error log).

Here's the Win32 dependency for the GHC binary

And a similar dependency for what I think is the ghc package

(TIL: GHC is a very complex project :P)

I wonder if there is a reason that Stackage doesn't pin its package versions to the same ones used in the ghc dependencies?

@johnsonwj
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johnsonwj commented May 15, 2018 •
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Oh hello, here's an issue in Stackage for just this problem!

It looks like a fix was attempted but it was reverted, and then implemented in stackage-curator instead.

I think that when stackage-curator gets released next, this should be fixed?

I will try to build it locally, generate a snapshot (probably this is possible?), and confirm whether or not HIE will compile.

@Anrock
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Anrock commented May 15, 2018

@johnsonwj do i understand correctly that some next stackage nightly will fix this issue? I have no idea what stackage-curator is.

@johnsonwj
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stackage-curator is an executable that generates the snapshot files for each build plan. My comment about it needing to be released wasn't correct, I think; from poking around stackage, it seems that they use the latest master anyway.

Win32 hasn't been explicitly included in a stackage snapshot since nightly-2018-05-02. I suspect that any snapshot after that will work, as well as LTS 11.8 or 11.9.

@johnsonwj
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I will confirm this and PR updates to the stack files if they end up working for me. I am worried that LTS 9 and 10 will be broken for Windows unless for some reason new snapshots are generated for those versions of GHC. However, one possible glimmer of hope is that the version of Win32 in those snapshots lines up with the one that is used in ghc; I will try to find out if that is the case and update the corresponding stack files accordingly.

@johnsonwj
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GHC Version Stackage Snapshot Stackage Win32 GHC Win32 Dependency Should Work?
8.4.2 >= nightly-2018-05-03 n/a 2.6.2.0 ✅
8.4.2 < nightly-2018-05-03 2.5.4.1 2.6.2.0 ❌
8.4.1 all 2.5.4.1 2.6.2.0 ❌
8.2.2 all 2.5.4.1 2.5.4.1 ✅
8.2.1 >= nightly-2017-08-17 2.5.4.1 2.5.4.1 ✅
8.2.1 < nightly-2017-08-17 2.4.0.0 or 2.3.1.1 2.5.4.1 ❌
8.0.2 all 2.3.1.1 2.3.1.1 ✅

I based the "GHC Win32 Dependency" column on the most recent version of Win32 that matches the constraints in ghc/compiler/ghc.cabal.in. If there is some subtlety in the way stack/cabal resolve the specific version number based on those constraints, maybe the values in that column are incorrect.

For the problematic setups, I will try a couple things:

  • Updating the snapshot version in stack-*.yaml to one without conflicts (if possible)
  • If this isn't possible (see GHC 8.4.1), I will try putting an explicit constraint in the yaml file so that stack doesn't get a mismatched version of Win32.

If those solutions work I'll PR the changes to the stack-*.yaml files.

@Anrock
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Anrock commented May 15, 2018

@johnsonwj tried it (nightlies after 2018-05-03 and adding Win32 with speicific version to extra-deps), didn't work for me. Same error. Will check again now, though.

@alanz
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alanz commented May 15, 2018

@Anrock, have you tried the most recent nightly for the 8.4.2 build?

@Anrock
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Anrock commented May 15, 2018

Disregard my previous message, for >= nightly-2018-05-03 actually there was another error:

--  While building custom Setup.hs for package haddock-api-2.19.0.1 using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.2.0.1_ghc-8.4.2.exe --builddir=.stack-work\dist\7d103d30 configure --with-ghc=C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\bin\ghc.EXE --with-ghc-pkg=C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\ghc-8.4.2\bin\ghc-pkg.EXE --user --package-db=clear --package-db=global --package-db=C:\sr\snapshots\77071368\pkgdb --package-db=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\pkgdb --libdir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\lib --bindir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\bin --datadir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\share --libexecdir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\libexec --sysconfdir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\etc --docdir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\doc\haddock-api-2.19.0.1 --htmldir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\doc\haddock-api-2.19.0.1 --haddockdir=C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\install\21156836\doc\haddock-api-2.19.0.1 --dependency=Cabal=Cabal-2.2.0.1 --dependency=array=array-0.5.2.0 --dependency=base=base-4.11.1.0 --dependency=bytestring=bytestring-0.10.8.2 --dependency=containers=containers-0.5.11.0 --dependency=deepseq=deepseq-1.4.3.0 --dependency=directory=directory-1.3.1.5 --dependency=filepath=filepath-1.4.2 --dependency=ghc=ghc-8.4.2 --dependency=ghc-boot=ghc-boot-8.4.2 --dependency=ghc-paths=ghc-paths-0.1.0.9-BTJEJFO7ixU1hUjA8BfQ4h --dependency=haddock-library=haddock-library-1.5.0.1-DfHt27RGS18LxLALgHOunK --dependency=transformers=transformers-0.5.5.0 --dependency=xhtml=xhtml-3000.2.2.1 --extra-include-dirs=C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\msys2-20150512\mingw64\include --extra-lib-dirs=C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\msys2-20150512\mingw64\bin --extra-lib-dirs=C:\Users\Anrock\AppData\Local\Programs\stack\x86_64-windows\msys2-20150512\mingw64\lib
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\Users\Anrock\projects\haskell-ide-engine\.stack-work\logs\haddock-api-2.19.0.1.log

    Configuring haddock-api-2.19.0.1...
    Error:
        The following packages are broken because other packages they depend on are missing. These broken packages must be rebuilt before they can be used.
    installed package haddock-library-1.5.0.1 is broken due to missing package haddock-library-1.5.0.1-919WkNWGnku6Kvc4vlhbv1-attoparsec

Not sure how to fix this, any advice?

@alanz nightlies from 2018-05-13 have dependency conflict

Error: While constructing the build plan, the following exceptions were encountered:

In the dependencies for cabal-helper-0.8.0.3:
    temporary-1.3 from stack configuration does not match <1.3 && >=1.2.1  (latest matching version
                  is 1.2.1.1)
needed due to haskell-ide-engine-0.2.0.0 -> cabal-helper-0.8.0.3

In the dependencies for ghc-mod-5.9.0.0:
    temporary-1.3 from stack configuration does not match <1.3 && >=1.2.0.3  (latest matching
                  version is 1.2.1.1)
needed due to haskell-ide-engine-0.2.0.0 -> ghc-mod-5.9.0.0

In the dependencies for ghc-mod-core-5.9.0.0:
    temporary-1.3 from stack configuration does not match <1.3 && >=1.2.0.3  (latest matching
                  version is 1.2.1.1)
needed due to hie-plugin-api-0.2.0.0 -> ghc-mod-core-5.9.0.0

I'm trying to fix it now.

@alanz
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alanz commented May 15, 2018

Thanks. We need to bump forward to a current one from time to time.

@Anrock
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Anrock commented May 15, 2018

Bumped temporary upper bound in all listed places and got same error about broken haddock-api...

@alanz
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alanz commented May 15, 2018 via email

@Anrock
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Anrock commented May 15, 2018

@alanz nah, tried that too.

Anyway: success! I haven't found a way to properly fix that broken package issue, so i've just deleted whole %STACK_ROOT% and it was gone.

Succesfully built with nightly-2018-05-15!

@johnsonwj
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Is this going to affect everyone who's used a one of the bad snapshots? If manually blowing away STACK_ROOT is the only way to get it to build on Windows it might be useful to put a note in the readme

@alanz
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alanz commented May 15, 2018

I know that the latest stack (1.7.1) installs different GHC versions from the prior ones. This may cause issues for snapshot artifacts built with the prior compiler installation, and then mixed in with the new one.

I know that as a precaution I blew away my entire ~/.stack directory to be sure.

@Anrock
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Anrock commented May 15, 2018 •
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@johnsonwj probably. When i tried to check your table after successful build and used nightly-05-03 without curator fix - broken haddock package appeared again.
However i'm not sure that blowing away whole stack root is the right way to recover.

@alanz
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alanz commented May 15, 2018

I have a version that builds with the current nightly, and uses an appropriate haddock-api/haddock-library.

See #571, which I will merge as soon as CI passes.

@Anrock Anrock closed this as completed May 16, 2018
@Anrock Anrock mentioned this issue May 25, 2018
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@Anrock Anrock mentioned this issue Jun 21, 2018
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@alanz alanz added this to the prehistory milestone Feb 2, 2019
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